The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it take for 90% of the lead to decay?
The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it take for 90% of the lead to decay?
Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
Publisher:DUNLAP, Richard A.
Chapter5: Some Basic Nuclear Physics
Section: Chapter Questions
Problem 3P: A sample of 137Cs (half-life = 30.1 years) decays at a rate of 1010 decays per second. How long will...
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![The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present
at time tand has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it
take for 90% of the lead to decay?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2e0f8062-dc63-418c-b7a6-76e91ea02240%2F5f0301e7-a5eb-4173-be2e-e5774730c95a%2Fsz4qzyl_processed.png&w=3840&q=75)
Transcribed Image Text:The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present
at time tand has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it
take for 90% of the lead to decay?
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